Hitting an enemy champion 3 consecutive times makes them vulnerable, dealing bonus damage and causing them to take more damage from all sources for 6s.
Presence of Mind
Increase your mana or energy regeneration when damaging an enemy champion. Takedowns restore mana or energy.
Legend: Bloodline
Takedowns on enemies grant permanent Life Steal, up to a cap. Once the cap is reached, increase your max health. Weaker earlier but stronger later game than other Legend Runes.
Coup de Grace
Deal more damage to low health enemy champions.
Inspiration
Magical Footwear
You get free boots at 12 min but you cannot buy boots before then. Each takedown you get makes your boots come 45s sooner.
Biscuit Delivery
Gain a free Biscuit every 2 min, until 6 min. Consuming or selling a Biscuit permanently increases your max mana and restores health and mana.